Andy Barcham expressed sadness that his cracking strike counted for little as Pompey slumped to yet another home defeat.
The Blues winger produced a fabulous individual goal with just 90 seconds on the clock last night.
He unleashed a sweet drive that flew into the top corner for his first goal at Fratton Park since his summer arrival.
But despite giving his side the perfect start, the former Scunthorpe man was left deflated as Pompey conceded two quick-fire goals – even after Southend had been reduced to 10 men following Cauley Woodrow’s red card.
Barcham said: ‘It was the sad thing that it didn’t lead to the win with everything that’s gone on in recent days.
‘It was a fantastic moment for me. My family was here to see me score my first goal at the Fratton end and it was a real tick in the box for me.
‘I’ve been waiting to do that since I arrived here and I was delighted.
‘I just wish the result could have gone our way as well.
‘We got the perfect start. Everything was going to plan and it was good to see.
‘But then we came unstuck and it’s hard to put a finger on it.
‘Even when they went down to 10 men, we thought that would play into our hands.
‘But the mood was pretty low in the changing room afterwards.’
While Pompey looked bright going forward – particularly in an encouraging first-half display – they were distinctly second best after the break and even when they had the numerical advantage.
But Barcham felt mistakes at both ends of the pitch had cost the team as Tom Craddock and David Connolly both missed gilt-edged opportunities to put Pompey 2-0 up, before Southend went on to snatch the points.
He said: ‘We can’t be conceding goals the way we did and we need to be more clinical in front of goal to kill the game off.
‘We didn’t do either of those things and it has cost us.
‘If we had got that second goal, it would have been exactly what was needed.
‘But it didn’t happen and then we face the problem of trying to keep it out of our net again.
‘We desperately needed a win and we haven’t got it.’
Barcham also admitted the players have taken their share of the responsibility after Guy Whittingham’s dismissal as manager on Monday.
He said: ‘I’ve been in this situation before and it’s not nice at all.
‘It’s the nature of the business that it does happen in football.
‘Guy is a good manager and a really nice person.
‘I owe him a lot because he brought me to the club, so it’s even more hard to swallow.
‘So we have to accept some of the responsibility as players.
‘The decision has been made and it’s out of our hands but it is based on our performances.
‘We’re working hard to try to put that right and get up the table.
‘We have lost so many games in recent weeks and it is bringing the morale down.
‘When you add the situation of what has happened to the manager, we need a lift.’